What needs to be done?
-Rewrite the kindle update tool to generate Touch/4 compatible updates
-Find a vulnerability for the Kindle 4
-Write some hacks for Kindle Touch

What can I do to help?
-If you are a developer/hacker, join our conversation in this thread or the IRC channel. We are looking for experts in ARM assembly and shellcode writing (in ARM) but all are welcome.
-If you have a broken Kindle 4 or Kindle Touch (or any other device), consider donating it for testing.
-If you are a Java developer and are interested in writing reader plugins and reader extensions (epub reader anyone) and wants help getting started, contact me